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Osa Weather (Next 3 days): The snow forecast for Osa is: Drizzle at first, then turning colder with dusting of snow on Wed afternoon. Freeze-thaw conditions (max 5°C on Tue night, min -3°C on Wed night). Winds increasing (light winds from the NW on Tue night, strong winds from the WNW by Wed night).
Osa Weather (Days 4-6): Light rain (total 6.0mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 10°C on Sun morning, min -2°C on Fri night). Winds increasing (calm on Fri night, strong winds from the W by Mon afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2 |  | ||||
| Bottom Lift: | 5 | |
Latest snow reports near Osa:
Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | |  | | |  |  |  | |  | |  | | |
light rain | light snow | light snow | light snow | light snow | some clouds | light snow | light snow | snow shwrs | clear | cloudy | some clouds | some clouds | some clouds | rain shwrs | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | 2 | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | |
max °C | 5 | -1 | -2 | -3 | 1 | 1 | 1 | 2 | 2 | -2 | 6 | 7 | 4 | 10 | 10 | 8 |
min °C | 1 | -1 | -2 | -3 | -1 | -1 | 0 | 0 | 0 | -2 | 3 | 1 | 3 | 7 | 7 | 6 |
-6 | -8 | -10 | -12 | -6 | -7 | -6 | -7 | -4 | -4 | 0 | -4 | -1 | 4 | 4 | 3 | |
90 | 87 | 89 | 80 | 79 | 75 | 91 | 79 | 78 | 58 | 39 | 41 | 82 | 76 | 81 | 78 | |
1350 | 600 | 400 | 300 | 550 | 700 | 750 | 650 | 900 | 1350 | 1850 | 1500 | 1600 | 2050 | 2300 | 2400 | |
 | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | — | 4:59 | — | — | 4:59 | — | — | 4:59 | — | — | 4:59 | — | — | 4:59 | — |
Drizzle at first, then turning colder with dusting of snow on Wed afternoon. Freeze-thaw conditions (max 5°C on Tue night, min -3°C on Wed night). Winds increasing (light winds from the NW on Tue night, strong winds from the WNW by Wed night).
Light rain (total 6.0mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 10°C on Sun morning, min -2°C on Fri night). Winds increasing (calm on Fri night, strong winds from the W by Mon afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Nov 2025 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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